电火花超声加工是综合利用电火花加工和超声波加工的优点而进行的复合加工。在电火花加工时引入超声波,使电极工具端面作超声振动能强化加工过程,促使电腐蚀产物的排除,并能使间隙稳定;当输入到液体中的超声能量足够大时,就会产生空蚀现象,空蚀现象会进一步强化加工过程;工具超声振动可有效地提高电火花放电脉冲的利用率。当不加超声振动 EDM ultrasonic machining is the comprehensive utilization of EDM and ultrasonic machining of the advantages of complex processing. The introduction of ultrasonic EDM, so that the ultrasonic vibration of the electrode tool face can enhance the processing process, to promote the elimination of electrical corrosion products, and to make the gap stable; when the ultrasonic energy input into the liquid is large enough, it will produce cavitation Phenomenon, cavitation phenomenon will further strengthen the processing; tool ultrasonic vibration can effectively improve the discharge rate of spark discharge. When no ultrasonic vibration